三层热备+负载均衡实例

三层热备+负载均衡实例

R8(config)#ip router 192.168.101.0 255.255.255.0 e1/0
R8(config)#ip router 192.168.102.0 255.255.255.0 e1/0
R8(config)#ip router 192.168.101.0 255.255.255.0 e1/3
R8(config)#ip router 192.168.102.0 255.255.255.0 e1/3


Switch配置命令
SW-L2#接入层交换机配置
1、创建 vlan10和vlan20,并将相应的接口分配到 vlan
2、与三层交换机相连的接口
启用中继 switchport mode trunk
改变封装 switchport trunk encap dot1q
3、启用生成树 spanning-tree vlan 10
spanning-tree vlan 20
4、配置上行速链路 spanning-tree uplinkfast
SW-L3-A和 SW-L3-B#三层交换机的配置
1、启用中继、改变封装//在与接入层交换机相连的接口上配置
与三层交换机相连的接口上配置
2、创建 vlan10和vlan20并配置 IP
SW-L3-A#int vlan 10
ip add 192.168.101.1 255.255.255.0
no sh
int vlan 20
ip add 192.168.102.1 255.255.255.0
no sh
SW-L3-B#int vlan 10
ip add 192.168.101.2 255.255.255.0
no sh
int vlan 20
ip add 192.168.102.2 255.255.255.0
no sh
3、启用三层交换机的路由功能
SW-L3-A#ip routing
SW-L3-B#ip routing
4、配置与路由器相连的接口
SW-L3-A#int f0/24
no switchport
ip add 192.168.100.2 255.255.255.0
no sh
SW-L3-B#int f0/24
no switchport
ip add 192.168.200.2 255.255.255.0
no sh
5、启用生成树
SW-L3-A#spanning-tree vlan 10 priority 0 /指定 vlan10的根网桥
spanning-tree vlan 20 /启用 vlan20的生成树
SW-L3-B#spanning-tree vlan 20 priority 0 /指定 vlan20的根网桥
spanning-tree vlan 10 /启用 vlan10的生成树
6、添加静态路由
SW-L3-A#ip route 0.0.0.0 0.0.0.0 192.168.100.1
SW-L3-B#ip route 0.0.0.0 0.0.0.0 192.168.200.1

SW-L3-A和 SW-L3-B#三层交换机的HSRP配置
1、配置 vlan10和vlan20的虚拟 IP、优先级、占先权、端口跟踪和认证
SW-L3-A#int vlan 10
standby 12 ip 192.168.101.100
standby 12 priority 100
standby 12 preempt
standby 12 track f0/24
standby 12 auth xsh
exit
int vlan 20
standby 16 ip 192.168.102.100
standby 16 priority 91
standby 16 preempt
standby 16 track f0/24
standby 16 auth benet
SW-L3-B#int vlan 10
standby 12 ip 192.168.101.100
standby 12 priority 91
standby 12 preempt
standby 12 track f0/24
standby 12 auth xsh
exit
int vlan 20
standby 16 ip 192.168.102.100
standby 16 priority 100
standby 16 preempt
standby 16 track f0/24
standby 16 auth benet